TY - JOUR

T1 - Poly(Phenylene Oxide)/Carbon Quantum Dots Composite Membranes for Gas Separation

AU - Бородина, Анастасия

AU - Курындин, Иван Сергеевич

AU - Костромин, Сергей

AU - Карпухин, Олег Романович

AU - Пулялина, Александра Юрьевна

AU - Панькин, Дмитрий Васильевич

AU - Поволоцкий, Алексей Валерьевич

AU - Сапрыкина, Наталья

AU - Полоцкая, Галина Андреевна

AU - Бронников, Сергей

PY - 2026/3/1

Y1 - 2026/3/1

N2 - For improving functional and exploitation characteristics of the poly(phenylene oxide) (PPO) gas separation membrane, it was loaded with nitrogen-doped carbon quantum dots (CQDs) (0.5–1.5 wt%). The latter were synthesized from citric acid and L-phenylalanine via a one-step hydrothermal method. Both PPO and PPO/CQDs materials were studied with scanning electron microscopy; UV–vis, FTIR, and XPS spectroscopy techniques; and subjected to mechanical tests. The selectivity in the He/N2 and O2/N2 gas pair separation was shown to increase with increasing CQDs content in the PPO/CQDs membranes. Meanwhile the permeation of individual He, O2, and N2 gases through the PPO/CQDs membranes decreases with increasing CQDs content since the CQDs incorporation into the PPO matrix increases the density of the films and decreases their free volume.

AB - For improving functional and exploitation characteristics of the poly(phenylene oxide) (PPO) gas separation membrane, it was loaded with nitrogen-doped carbon quantum dots (CQDs) (0.5–1.5 wt%). The latter were synthesized from citric acid and L-phenylalanine via a one-step hydrothermal method. Both PPO and PPO/CQDs materials were studied with scanning electron microscopy; UV–vis, FTIR, and XPS spectroscopy techniques; and subjected to mechanical tests. The selectivity in the He/N2 and O2/N2 gas pair separation was shown to increase with increasing CQDs content in the PPO/CQDs membranes. Meanwhile the permeation of individual He, O2, and N2 gases through the PPO/CQDs membranes decreases with increasing CQDs content since the CQDs incorporation into the PPO matrix increases the density of the films and decreases their free volume.

KW - carbon quantum dots

KW - gas separation

KW - mixed matrix membrane

KW - poly(phenylene oxide)

UR - https://www.scopus.com/pages/publications/105033086888

UR - https://www.mendeley.com/catalogue/159c45c7-a55f-3d12-8238-49894a2d5659/

U2 - 10.1002/pat.70567

DO - 10.1002/pat.70567

M3 - Article

VL - 37

JO - Polymers for Advanced Technologies

JF - Polymers for Advanced Technologies

SN - 1042-7147

IS - 3

M1 - e70567

ER -